Answer:
Pillars of Islam are certain rules that every Muslim should obey during his lifetime. They are important because they guide people towards their better selves and closer to the God. Those are Testimony of faith Prayer , Fasting in Ramadan , Charity and Pilgrimage to Mecca .
Step-by-step explanation:
Prayer - Muslims are praying five times a day and consider this to be a physical and mental exercise, that starts with water purification of the body.
Fasting in Ramadan - Muslims fast during the month of Ramadan, which lasts for 30 days according to Hijri calendar. Fasting lasts from dusk till dawn and eating and drinking is forbidden during that period, and to curb negative emotions.
Pilgrimage to Mecca is one of the pillars that requires that every Muslim should visit the city of Mecca, where the holy site Kaaba is located, during his lifetime.